The total amount in milli-satoshis being sent as part of a larger multi-path
payment. The caller is responsible for ensuring subpayments to the same node
and payment_hash sum exactly to total_amt_msat. The same
total_amt_msat must be used on all subpayments.
The total amount in milli-satoshis being sent as part of a larger multi-path payment. The caller is responsible for ensuring subpayments to the same node and payment_hash sum exactly to total_amt_msat. The same total_amt_msat must be used on all subpayments.